Lindy CPU Installation And Use Manual page 28

To perform a firmware upgrade on your LINDY CPU Switch Multiscreen you will
need a suitable serial upgrade cable and an IBM PC compatible computer with an
RS232 serial port and an operating system that supports DOS. Upgrade cables may
be purchased for LINDY Technology or may be made using the wiring specification
given in Appendix A4. You will also need to download the latest version of the
LINDY CPU Switch Multiscreen firmware which is available free of charge at
www.lindy.com.
To perform a flash upgrade on the LINDY CPU Switch Multiscreen:
Step 1 - Connect your computer to the LINDY CPU Switch Multiscreen
Connect your computer's serial port to the LINDY CPU Switch Multiscreen's options
port (labelled OPTIONS/FLASH).
Step 2 - Select flash upgrade mode using option switch 7
Move option switch 7 on the underside of the LINDY CPU Switch Multiscreen to the
ON position.
Step 3 - Reset the LINDY CPU Switch Multiscreen
Reset the LINDY CPU Switch Multiscreen by moving option switch 8 to the ON
position (halt and reset) and then back to the OFF position (normal operation).
Alternatively you may reset the LINDY CPU Switch Multiscreen by powering off all
the attached computers and removing the optional power adapter.
Step 4 - Ensure that the LINDY CPU Switch Multiscreen is powered on
Ensure that the LINDY CPU Switch Multiscreen is powered on. It is normally
possible to upgrade the LINDY CPU Switch Multiscreen when it is powered from a
single computer, however it is good practice to ensure that there is the maximum
possible power availability during flash upgrades and so if possible ensure that all
the computers are powered on. The upgrade program monitors the LINDY CPU
Switch Multiscreen's voltage and will not allow an upgrade to be performed if the
voltage is insufficient.
The display should now show:
LINDY CPU Switch Multiscreen Installation and Use Page 21